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Sendio

Sendio — Eliminate Email Cyber Threats – Total inbox control and email security.

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Sendio provides email security solutions that protect enterprises from spam, phishing and ransomware. Its products include Opt-Inbox (inbox control and sender verification), Email Security Gateway (gateway-level filtering with IP reputation, anti-virus, SPF/DKIM checking) and Server Recon (IP reputation checking). The platform uses a positive security model where only approved senders reach the inbox, and can be deployed in the cloud or on-premises.

12 alternatives to Sendio

Ranked by how well each tool replaces Sendio: shared features, audience, price and popularity.

  1. DuoCircle

    Email infrastructure for organizations the incumbents won't engage with

    Covers 0 of 15 key features and has a free plan.

    Free plan
    54 out of 100 matchFree

  2. Simply Send

    Email delivery platform for transactional and marketing email.

    Covers 0 of 15 key features and has a free plan.

    Free plan
    54 out of 100 match$5/mo

  3. MailGuard

    Email Security for Australian Businesses.

    Covers 1 of 15 key features.

    53 out of 100 match—

  4. iRedMail

    Free, Open Source Mail Server Solution

    Covers 1 of 15 key features, has a free plan and is open source.

    Free planOpen source
    52 out of 100 matchFree

  5. Sidemail

    Sidemail: Email delivery made simple for SaaS and AI.

    Covers 0 of 15 key features.

    50 out of 100 match$19/mo

  6. Exim

    Message transfer agent (MTA) for Unix systems.

    Covers 1 of 15 key features and is open source.

    Open source
    49 out of 100 matchContact sales

  7. Unisender

    Email marketing campaign service for businesses.

    Covers 0 of 15 key features and has a free plan.

    Free plan
    48 out of 100 matchFree

  8. Postfix

    A mail server intended as an alternative to Sendmail

    Covers 1 of 15 key features and is open source.

    Open source
    48 out of 100 match—

  9. EmailSuccess

    High Performance Mail Transfer Agent (MTA) Solution

    Covers 1 of 15 key features and has a free plan.

    Free plan
    47 out of 100 match$333.33/mo

  10. SentinelOne

    AI-native cybersecurity platform protecting endpoints, cloud, identity and AI tools

    Covers 0 of 15 key features.

    46 out of 100 matchContact sales

  11. SendCheckIt

    Email deliverability and marketing tools to test, validate, and optimize email campaigns.

    Covers 0 of 15 key features and has a free plan.

    Free plan
    45 out of 100 match$19/mo

  12. Vircom

    Email security solutions enhanced by Vircom for MSPs and IT teams

    Covers 0 of 15 key features.

    44 out of 100 matchContact sales